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51498-37-4

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Basic Information
CAS No.: 51498-37-4
Name: 4-Hydroxypyridine-3-sulfonic acid
Molecular Structure:
Molecular Structure of 51498-37-4 (4-Hydroxypyridine-3-sulfonic acid)
Formula: C5 H5 N O4 S
Molecular Weight: 175.165
Synonyms: 4-Hydroxy-3-pyridinesulfonicacid;
EINECS: 257-243-2
Density: 1.71 g/cm3
Melting Point: >300 ºC
Appearance: white crystal powder
Hazard Symbols: C
Risk Codes: 36/37/38
Safety: 26-36/37/39-45
PSA: 95.87000
LogP: 1.11470
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Chemistry


IUPAC Name: 4-Oxo-1H-pyridine-3-sulfonic acid 
Empirical Formula: C5H5NO4S
Molecular Weight: 175.1625 g/mol
EINECS: 257-243-2 
Product Categories: Pyridine;Organic acids 
Sensitive: Light Sensitive
Canonical SMILES: C1=CNC=C(C1=O)S(=O)(=O)O
InChI: InChI=1S/C5H5NO4S/c7-4-1-2-6-3-5(4)11(8,9)10/h1-3H,(H,6,7)(H,8,9,10)
XLogP3-AA: -0.4
H-Bond Donor: 2
H-Bond Acceptor: 5
Rotatable Bond Count: 1
Tautomer Count: 3
Exact Mass: 174.993928
MonoIsotopic Mass: 174.993928
Topological Polar Surface Area: 83.5
Heavy Atom Count: 11
Complexity: 332
Index of Refraction: 1.643
Molar Refractivity: 36.86 cm3
Molar Volume: 101.8 cm3
Polarizability: 14.61×10-24 cm3
Surface Tension: 77.4 dyne/cm
Density: 1.71 g/cm3
Melting Point of 4-Hydroxypyridine-3-sulfonic acid (CAS NO.51498-37-4): >300 °C

Safety Profile

Hazard Codes: CorrosiveC
Risk Statements: 36/37/38 
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36/37/39-45
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection. 
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR: 3261
HazardClass: 8
PackingGroup of 4-Hydroxypyridine-3-sulfonic acid (CAS NO.51498-37-4): III

Specification

  4-Hydroxypyridine-3-sulfonic acid (CAS NO.51498-37-4), its Synonyms are Hydroxypyridinesulfonicacid ; 4-Pyridinol-3-sulfonic acid ; 4-Hydroxypyridie-3-sulphonic acid ; 4-Hydroxy-3-pyridinesulfonic acid ; 4-Hydroxy-3-pyridinesulphonic acid ; 4-Hydroxypyridine-3-sulfonyl acid .